| 摘要 |
A starter cell for starting a plant has a first opening at the topmost portion of the cell for facilitating plant seeding and growth, a second opening at the bottommost portion of the cell for facilitating root passage for air pruning of the root, and a plurality of inward-facing ridges formed vertically along the cell walls and along any cell comers. The cell is characterized in that the ridges are strategically placed to guide developing roots to avoid twisting and balling. In some embodiment the ridges have feet to provided for stacking, for example.
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